Methods and apparatus for network capacity enhancement for wireless device coexistence

• US 8,873,418 B2
• Filed: 09/10/2012
• Issued: 10/28/2014
• Est. Priority Date: 04/11/2008
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Robinson, Michael A., Chen, Camille, Tolentino, Jaime
• Primary Examiner(s): Nooristany, Sulaiman
• Application Number:
  US13/609,081
• Publication Number:
  US 20130064118A1
• Time in Patent Office: 778 Days
• US Class Current: 370/252
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 52/028 switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Methods and apparatus for enhancing network capacity in a network comprising multiple wireless communication that overlap at least partly in frequency spectrum. In one embodiment, the apparatus comprises a portable device such as a laptop or smartphone having both a WLAN (e.g., Wi-Fi) interface and a PAN (e.g., Bluetooth) interface which each operate with approximately the same frequency range. One variant places the WLAN interface into a power-saving mode as a default, thereby mitigating interference with the PAN interface in cases where the WLAN interface is not in active use. In another variant, an aggressive PAN management algorithm is used to enforce network policy on the PAN interface, thereby mitigating interference between the PAN interface and the WLAN interfaces of other devices in the network (as well as the parent device). AP-based variants are also described. Methods of operation and doing business utilizing the aforementioned apparatus are also disclosed.

Claims

1. Network apparatus, comprising:

a first wireless module in communication with a first network configured to operate according to a first wireless protocol;

a second wireless module in communication with a second network configured to operate according to a second wireless protocol, the second wireless protocol being different than the first wireless protocol; and

a management module configured to receive first data relating to a duty cycle of at least one of the first wireless protocol module and the second wireless protocol module, the management module configured to dynamically adjust an operating parameter of at least one of the first wireless protocol module and the second wireless protocol module in response to the received first data;

wherein the second wireless module comprises a plurality of operating modes, and the dynamic adjustment of the operating parameter comprises dynamic selection of individual ones of the plurality of operating modes of the second module; and

wherein each of the plurality of operating modes of the second wireless module comprise a priority level for a given operating profile, the priority level configured to vary between the plurality of operating modes.

2. The network apparatus of claim 1, wherein the first wireless protocol comprises an Institute of Electrical and Electronics Engineers (IEEE)-Std. 802.11 wireless protocol.

3. The network apparatus of claim 2, wherein the second wireless protocol comprises a Bluetooth protocol, and the given operating profile comprises an Advanced Audio Distribution Profile (A2DP).

4. The network apparatus of claim 1, wherein:

the first wireless module and the second wireless module are in data communication; and

the first wireless module and the second wireless module are configured to coordinate operation via the data communication.

5. A method of operating a portable wireless device comprising a plurality of differing wireless modules each operating at least partly within a same frequency spectrum, the method comprising:

receiving a request comprising at least first data relating to a duty cycle of at least one of a first wireless protocol module and a second wireless protocol module;

evaluating at least one of a first duty cycle parameter associated with the first wireless module and a second duty cycle parameter associated with the second wireless module; and

dynamically adjusting a first operating parameter of at least one of the first wireless module and the second wireless module based at least in part on the act of evaluating;

wherein the second wireless module comprises a plurality of operating modes, and the dynamic adjustment of the operating parameter comprises dynamic selection of individual ones of the plurality of operating modes of the second module; and

wherein each of the plurality of operating modes of the second wireless module comprise a priority level for a given operating profile, the priority level varying between the plurality of operating modes.

6. The method of claim 5, further comprising:

implementing a default power save mode for the first of the plurality of wireless modules of the device; and

evaluating a receiver signal strength associated with the first wireless module against a predetermined threshold;

wherein the act of adjusting the first operating parameter is further based at least in part on the act of evaluating the receiver signal strength.

7. The method of claim 6, wherein the act of evaluating the receiver signal strength comprises determining a receive signal strength indicator (RSSI).

8. The method of claim 5, wherein the act of adjusting the first operating parameter comprises at least adjusting a duty cycle of at least one of the wireless modules.

9. The method of claim 5, further comprising:

determining a total duty cycle parameter of the first and the second wireless modules; and

evaluating the total duty cycle parameter against at least one duty cycle parameter of the first and the second cycle parameters.

10. The method of claim 5, wherein the act of adjusting of the first operational parameter comprises at least adjusting a data rate transmission speed of the second wireless module.

11. The method of claim 5, wherein the act of adjusting of the first operational parameter comprises at least adjusting a prioritization of data transfer over the second wireless module.

12. The method of claim 5, wherein the act of adjusting of the first operational parameter comprises at least disabling an operational profile or mode of the second wireless module.

13. A computer readable apparatus having a storage medium comprising a plurality of instructions which are configured to, when executed:

receive a request comprising at least data relating to a duty cycle of at least one of a first wireless protocol and a second wireless protocol module of a client device;

determine the duty cycle parameter associated with the first wireless module and the second wireless module;

evaluate the duty cycle parameter against at least one duty cycle parameter of a first cycle parameter and a second cycle parameter; and

transmit a response to the client device, the response configured to adjust an operating parameter of at least one of the first wireless protocol module and the second wireless protocol module based at least in part on the evaluation;

wherein the second wireless module comprises a plurality of operating modes, and the dynamic adjustment of the operating parameter comprises dynamic selection of individual ones of the plurality of operating modes of the second module; and

wherein each of the plurality of operating modes of the second wireless module comprise a priority level for a given operating profile, the priority level varying between the plurality of operating modes.

14. The apparatus of claim 13, wherein:

the first wireless protocol module comprises a Wi-Fi compliant interface and the second wireless protocol module comprises a Bluetooth-compliant interface; and

the adjustment of the operating parameter comprises selection of one of a plurality of operating modes associated with the Bluetooth-compliant interface.

15. The apparatus of claim 13, wherein the plurality of instructions are further configured to, when executed:

evaluate usage of the at least one wireless interface with a number of client devices in current data communication with the access point;

wherein the adjustment of the operating parameter further based at least in part on the evaluation.

16. The apparatus of claim 15, wherein the evaluated usage comprises at least a determination of a bandwidth usage of the access point.

17. The apparatus of claim 13, wherein the adjustment of the operating parameter is further based on a comparison the duty cycle of at least one of the first and second wireless protocol modules of the client device which sent the request against at least one threshold parameter.

18. The apparatus of claim 13, wherein the plurality of instructions are further configured to, when executed, adjust the first cycle parameter comprises at least adjust a duty cycle of at least one of the wireless modules.

19. The apparatus of claim 13, wherein the plurality of instructions are further configured to, when executed:

determine a total duty cycle parameter of the first wireless module and the second wireless module; and

evaluate the total duty cycle parameter against at least one duty cycle parameter of the first and the second cycle parameters.

20. The apparatus of claim 13, wherein the plurality of instructions are further configured to, when executed:

implement a default power save mode for the first of the plurality of wireless modules of the device; and

evaluate a receiver signal strength associated with the first wireless module against a predetermined threshold.